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(iii) A bag contains 3 red, 3 white and 3 green balls of the same size. One ball is
taken out of the bag at random, what is t

By Arya

(iii) A bag contains 3 red, 3 white and 3 green balls of the same size. One ball is
taken out of the bag at random, what is the probability that the ball picked up
is (1) red (2) either white or green.​

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Arya

4) There are 10 persons, among whom two are friends. Find the number
of ways in which they can be arranged around a circle. A

b) The runs scored in a cricket match by 9 players are as follows:
18, 5, 9, 82, 10, 0, 11, 50, 15
Find the median of th

2 thoughts on “(iii) A bag contains 3 red, 3 white and 3 green balls of the same size. One ball is<br />taken out of the bag at random, what is t”

  2. Answer:

    1. 1/3

    2. 2/3

    Step-by-step explanation:

    1. P( 1 red ball ) = no. of red balls

    total no. of balls

    = 3 / 9

    = 1/3

    2. P( 1 white or 1 green ) = 1 – P( 1 red ) [ P(A) = 1 – P( not A) ]

    = 1 – 1/3

    = 2/3

    Alternate method:

    2. P( 1 white or 1 green ) = P( 1 white ) + P( 1 green )

    = no. of white balls + no. of green balls

    total no. of balls total no. of balls

    = 1/3 + 1/3

    = 2/3

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